CN203116901U - Automobile brake clearance automatic adjusting arm detente pressure testing device - Google Patents

Abstract

The utility model discloses an automobile brake clearance automatic adjusting arm detente pressure testing device. A worm wheel of the adjusting arm is inserted in a spline shaft with an arm rod facing upwards, and the direction of the arm rod of the adjusting arm and the position of a pushing fork can be adjusted, therefore the installation holes thereof can be aligned with each other, and a latch can be inserted in the holes to realize the hinge connection of the arm rod and the pushing fork. A simulation loading mechanism can be started, and a primary holding moment can be applied on the worm wheel of the adjusting arm. A force sensor can be used to detect a current output force of a pushing rod timely, the loading force used to input the air pressure in the spring cylinder can be adjusted, and a displacement of a primary movement of the pushing rod of the spring cylinder can be detected. The continuous loading times of the spring cylinder can be set, and the test can be started. The automobile brake clearance automobile adjusting arm detente pressure testing device is advantageous in that the structure is simple, the operation is convenient, the servo motor can be started, and the primary holding moment can be applied on the worm wheel of the adjusting arm by the simulation loading device; the air pressure input in the spring cylinder can be adjusted to control the pushing force loaded on the arm rod of the adjusting arm, and then the brake loading effect can be simulated; and the displacement sensor can be used to detect the loading distance of the pushing rod under the set air pressure.

Description

Arm for adjusting automobile brake clearance automatically hangs down the brake pressure proving installation

Technical field

The utility model relates to a kind of vehicle component pick-up unit, is specifically related to the low brake pressure proving installation of a kind of arm for adjusting automobile brake clearance automatically.

Background technology

Automobile braking frequently can cause the quick wearing and tearing of brake lining, and the brake clearance between brake drum and the shoe brake increases, and causes potential safety hazards such as brake-pedal travel lengthening, braking retardation and damping force reduction.Adjust arm as the key part of brake system of car, brake clearance is adjusted the long-term stability of function, is to guarantee the reliable key factor of automobile brake perfrmance.So need hang down the brake pressure test to the adjustment arm that dispatches from the factory.

Summary of the invention

The utility model has proposed the low brake pressure proving installation of a kind of arm for adjusting automobile brake clearance automatically at the deficiencies in the prior art.

The technical scheme that the technical matters that the utility model solves adopts is as follows:

A kind of arm for adjusting automobile brake clearance automatically hangs down the brake pressure proving installation, comprises that displacement transducer, displacement transducer move block, fixed support, power sensor, pedestal, servomotor, speed reduction unit, shaft coupling, connecting cylinder, angular transducer, push rod, spring cylinder installing plate, spring cylinder, push away fork, console panel fixture, load bracket, worm-and-wheel gear, transmission shaft, spline terminal pad, splined shaft and displacement sensor bracket.

The centre position of pedestal is provided with fixed support, two parts of side before and after pedestal is divided into.Load bracket is positioned at a side of pedestal, be used for installing the fictitious load device of adjusting arm, described fictitious load device provides load force by the motor driven systems of retarder-equipped servomotor, motor driven systems is fixed on the load bracket by connecting cylinder, the output shaft of speed reduction unit is connected with worm screw by shaft coupling, worm and wheel constitutes worm-and-wheel gear, on the axle of transmission shaft near the overhanging end of worm-and-wheel gear one side angular transducer is installed and is fixedly mounted on the pedestal by angle Support, the torque that servomotor outputs on the worm gear is connected by the splined shaft of transmission shaft with the opposite side of pedestal, is connected by the spline terminal pad between splined shaft and the transmission shaft.The end face of splined shaft is processed into gear-like, is used for loading the adjustment arm.The console panel fixture is fixed on the support, and the console panel fixture is used for fixing the console panel of adjusting arm.

Spring cylinder is fixedly mounted on the support outside by the spring cylinder installing plate, the spring cylinder output shaft is connected with an end of power sensor by push rod, displacement sensor bracket mounting bracket inboard also is positioned at directly over the push rod, displacement transducer is installed on the displacement sensor bracket, displacement transducer moves block by being threaded on the push rod, make displacement transducer move the jail, measuring staff top of block and displacement transducer, the other end of power sensor with push away the fork be threaded, pushing away fork and the armed lever of adjusting arm, to align the back hinged, thereby the loading force of spring cylinder is passed to tested adjustment arm.

Beneficial effect: the utility model is simple in structure, and is easy to operate, starts servomotor, makes the fictitious load device apply the initial moment of holding tightly to the worm gear of adjusting arm; Regulate the air pressure of input spring cylinder and can control the thrust that is loaded on the armed lever of adjusting arm, simulate the effect that braking loads; Can detect push rod in the loading distance of setting under the air pressure by displacement transducer.

Description of drawings

Fig. 1 is the front elevation of the utility model embodiment;

Fig. 2 is the vertical view of the utility model embodiment.

Among the figure: 1. displacement transducer; 2. displacement transducer moves block; 3. support; 4. power sensor; 5. pedestal; 6. servomotor; 7. speed reduction unit; 8. shaft coupling; 9. connecting cylinder; 10. angular transducer; 11. push rod; 12. spring cylinder installing plate; 13. spring cylinder; 14. push away fork; 15. adjustment arm; 16. console panel fixture; 17. load bracket; 18. worm-and-wheel gear; 19. transmission shaft; 20. spline terminal pad; 21. splined shaft; Displacement sensor bracket 22.

Embodiment

Further specify the utility model below in conjunction with accompanying drawing.

As shown in Figure 1 and Figure 2, a kind of arm for adjusting automobile brake clearance automatically hangs down the brake pressure proving installation, comprises that displacement transducer 1, displacement transducer move block 2, fixed support 3, power sensor 4, pedestal 5, servomotor 6, speed reduction unit 7, shaft coupling 8, connecting cylinder 9, angular transducer 10, push rod 11, spring cylinder installing plate 12, spring cylinder 13, push away fork 14, console panel fixture 16, load bracket 17, worm-and-wheel gear 18, transmission shaft 19, spline terminal pad 20, splined shaft 21 and displacement sensor bracket 22.

The centre position of pedestal 5 is provided with fixed support 3, two parts of side before and after pedestal is divided into.Load bracket 17 is positioned at a side of pedestal, be used for installing the fictitious load device of adjusting arm, described fictitious load device provides load force by the motor driven systems of the servomotor 6 that speed reduction unit 7 is housed, motor driven systems is fixed on the load bracket 17 by connecting cylinder 9, the output shaft of speed reduction unit 7 is connected with worm screw by shaft coupling 8, worm and wheel constitutes worm-and-wheel gear 18, on the axle of transmission shaft near the overhanging end of worm-and-wheel gear 18 1 sides angular transducer 10 is installed and is fixedly mounted on the pedestal 5 by angle Support, the torque that servomotor outputs on the worm gear is connected with the splined shaft 21 of the opposite side of pedestal by transmission shaft 19, is connected by spline terminal pad 20 between splined shaft and the transmission shaft.The end face of splined shaft is processed into gear-like, is used for loading adjustment arm 15.Console panel fixture 16 is fixed on the support, and the console panel fixture is used for fixing the console panel of adjusting arm.

Spring cylinder 13 is fixedly mounted on the support outside by spring cylinder installing plate 12, spring cylinder 13 output shafts are connected with an end of power sensor 4 by push rod 11, displacement sensor bracket 22 mounting brackets inboard also is positioned at directly over the push rod, displacement transducer 1 is installed on the displacement sensor bracket 22, displacement transducer moves block 2 by being threaded on the push rod 11, it is firm with the measuring staff top of displacement transducer 1 to make displacement transducer move block 2, the other end of power sensor 4 with push away fork and 14 be threaded, pushing away fork 14 and the armed lever of adjusting arm 15, to align the back hinged, thereby the loading force of spring cylinder is passed to tested adjustment arm.

Before the test, the direction that the worm gear of adjusting arm makes progress with armed lever is inserted on the splined shaft, regulated the armed lever direction of adjusting arm and the position that pushes away fork, the mounting hole of the two is aligned, insert latch and make the two hinged.Start simulation loading mechanism, apply for the worm gear of adjusting arm and initially hold moment tightly.During test, according to test request, by the real-time power output that detects current push rod of power sensor, adjusting air pressure is 1582N.m to the loading force of spring cylinder, the displacement that the push rod of detection springs cylinder once moves; The number of times that the setting spring cylinder loads continuously starts test, records the moving displacement of the cylinder push-rod of per 10 loop tests.

Claims (1)

1. the low brake pressure proving installation of arm for adjusting automobile brake clearance automatically comprises that displacement transducer, displacement transducer move block, fixed support, power sensor, pedestal, servomotor, speed reduction unit, shaft coupling, connecting cylinder, angular transducer, push rod, spring cylinder installing plate, spring cylinder, push away fork, console panel fixture, load bracket, worm-and-wheel gear, transmission shaft, spline terminal pad, splined shaft and displacement sensor bracket;

It is characterized in that: the centre position of described pedestal is provided with fixed support, two parts of side before and after pedestal is divided into; Load bracket is positioned at a side of pedestal, be used for installing the fictitious load device of adjusting arm, described fictitious load device provides load force by the motor driven systems of retarder-equipped servomotor, motor driven systems is fixed on the load bracket by connecting cylinder, the output shaft of speed reduction unit is connected with worm screw by shaft coupling, worm and wheel constitutes worm-and-wheel gear, on the axle of transmission shaft near the overhanging end of worm-and-wheel gear one side angular transducer is installed and is fixedly mounted on the pedestal by angle Support, the torque that servomotor outputs on the worm gear is connected by the splined shaft of transmission shaft with the opposite side of pedestal, is connected by the spline terminal pad between splined shaft and the transmission shaft; The end face of splined shaft is processed into gear-like, is used for loading the adjustment arm; The console panel fixture is fixed on the support, and the console panel fixture is used for fixing the console panel of adjusting arm;

Spring cylinder is fixedly mounted on the support outside by the spring cylinder installing plate, the spring cylinder output shaft is connected with an end of power sensor by push rod, displacement sensor bracket mounting bracket inboard also is positioned at directly over the push rod, displacement transducer is installed on the displacement sensor bracket, displacement transducer moves block by being threaded on the push rod, make displacement transducer move the jail, measuring staff top of block and displacement transducer, the other end of power sensor with push away the fork be threaded, pushing away fork and the armed lever of adjusting arm, to align the back hinged, thereby the loading force of spring cylinder is passed to tested adjustment arm.

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